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Posted to issues@flink.apache.org by "Timo Walther (Jira)" <ji...@apache.org> on 2019/11/26 14:53:00 UTC
[jira] [Commented] (FLINK-12996) Add predefined type validators,
strategies, and transformations
[ https://issues.apache.org/jira/browse/FLINK-12996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16982562#comment-16982562 ]
Timo Walther commented on FLINK-12996:
--------------------------------------
The first set of classes has been merged for FLIP-65:
edf440a91143091af50285fdee8c3b3d49d13070
[FLINK-12996][table-common] Require equals/hashCode for type inference classes
dac2cb874c3cf05ffc34cc50a7f7387c8f1a3880
[FLINK-12996][table-common] Offer unified exception for type inference classes
0a9e2bdd2d3999b4c73af69d443364dde9c97b67
[FLINK-12996][table-common] Add required input type validators for FLIP-65
86038cd7b38c7c40fcd480af20c57a1281e2aa30
[FLINK-12996][table-common] Add required type strategies for FLIP-65
0af48012ec621f429b3abcfc4ca6e0d13ad44316
[FLINK-12996][table-common] Simplify type validators structure
> Add predefined type validators, strategies, and transformations
> ---------------------------------------------------------------
>
> Key: FLINK-12996
> URL: https://issues.apache.org/jira/browse/FLINK-12996
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Affects Versions: 1.9.0
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> FLINK-12924 introduced new interfaces for performing type inference. We need a set of predefined type validators, strategies, and transformations implemented with the new interfaces in order to represent the old type checking logic. Those interfaces can be inspired by Calcite's {{org.apache.calcite.sql.type.ReturnTypes}}, {{org.apache.calcite.sql.type.OperandTypes}}, and {{org.apache.calcite.sql.type.SqlTypeTransforms}}.
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